The scientist's findings, though initially dismissed as ______, were eventually ______ by independent experiments.

Answer and explanation

Correct answer: A. dubious ... corroborated

  1. Step 1: 'Though initially dismissed' signals a reversal: the later outcome must support the findings.
  2. Step 2: Only 'corroborated' (confirmed) fits as the later outcome after being called 'dubious'.
Answer
dubious ... corroborated.
Why not the others: 'dubious ... questioned' repeats the dismissal; 'premature ... refuted' and 'radical ... overlooked' keep the findings rejected, so there is no contrast.

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